Shortlist by what you need
Start here if you know why you are leaving Caktus AI.
Want the closest match?
GelezaMost similar to Caktus AI in what it does, its category and its price.
Visit (opens Geleza in a new tab)Need a free plan?
Apex Vision AIHas a free plan, rated 3.8 out of 5. Caktus AI has none.
Visit (opens Apex Vision AI in a new tab)Want to pay less than Caktus AI?
EduWriter.aiFrom $7/mo, against from $19.99/mo for Caktus AI.
Visit (opens EduWriter.ai in a new tab)Want the best rated?
MathGPTRated 3.8 out of 5 in our review, against 3.7 for Caktus AI.
Visit (opens MathGPT in a new tab)
At a glance
Green means better than Caktus AI, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 Caktus AIBaseline | 3.7 | $19.99/mo | No | A subscription study platform that pairs an essay writer with citations against a math solver, code generator, and AI humanizer for students. | |
| Geleza | 3.4−0.3 | $9/mo$10.99 less | YesCaktus AI has none | AI study platform with a math solver, PDF chat, quiz and essay tools, and a choice of GPT-4o, Claude and Mistral models. | vs Caktus AI |
| Apex Vision AI | 3.8+0.1 | $7.99/mo$12 less | YesCaktus AI has none | AI study assistant for homework help, flashcards and practice exams that works inside Canvas and Blackboard | vs Caktus AI |
 StudyX | 3.4−0.3 | Free | YesCaktus AI has none | Homework solver, note taker, flashcards and quizzes from any PDF, lecture or video. | vs Caktus AI |
 Tutorly | 3.2−0.5 | Free | YesCaktus AI has none | Chat with AI tutors for instant homework answers across Math, Science, History, Coding, and more - plus AI paraphrasing and step-by-step essay guidance. | vs Caktus AI |
 Samwell AI | 3.0−0.7 | $8/mo$11.99 less | YesCaktus AI has none | Guided paper creation with verified MLA/APA citations and a built-in plagiarism checker - not a remover - for students and academics writing structured essays. | vs Caktus AI |
| MathGPT | 3.8+0.1 | Free | YesCaktus AI has none | Math-first homework helper that also runs PhysicsGPT, ChemGPT and AccountingGPT off the same input box. | vs Caktus AI |
| EduWriter.ai | 2.5−1.2 | $7/mo$12.99 less | YesCaktus AI has none | Writes a formatted research paper in under 20 seconds, with a disclaimer attached. | vs Caktus AI |
 ES.AI | 3.8+0.1 | $79/mo$59.01 more | YesCaktus AI has none | College application toolkit for essays, strengths discovery and internship search | vs Caktus AI |
The alternatives in detail
In order of how closely each one matches Caktus AI.
Geleza
3.4$9/mo
vs Caktus AI$10.99 less−0.3Free plan
AI study platform with a math solver, PDF chat, quiz and essay tools, and a choice of GPT-4o, Claude and Mistral models.
- Step-by-step math solver and PDF chat
- Quiz, flashcard, worksheet and study-planner tools
- Essay writer, paraphraser and grammar fixer
A wide set of study tools in one account
Tool counts and student numbers are inconsistent or unverified
Apex Vision AI
3.8$7.99/mo
vs Caktus AI$12 less+0.1Free plan
AI study assistant for homework help, flashcards and practice exams that works inside Canvas and Blackboard.
- Step-by-step homework help rather than answers alone
- Flashcard maker, study-guide generator and practice-exam generator
- Works alongside Canvas, Blackboard and other learning platforms
Free tier refills rather than expiring, so casual use stays viable
Homework assistance sits in contested territory for academic integrity
StudyX
3.4Free
vs Caktus AI−0.3Free plan
Homework solver, note taker, flashcards and quizzes from any PDF, lecture or video.
- Step-by-step homework solutions and maths solver
- Notes, flashcards and quizzes from lectures or PDFs
- PDF and video summarisers
Flashcards and quizzes from a lecture support retrieval practice
Ships an AI Humanizer for defeating detectors, and sells to students
Tutorly
3.2Free
vs Caktus AI−0.5Free plan
Chat with AI tutors for instant homework answers across Math, Science, History, Coding, and more - plus AI paraphrasing and step-by-step essay guidance.
- Real-time AI tutor chat across multiple academic subjects
- Personalized, detailed answers to specific homework questions
- AI paraphrasing for essays and reports
Covers a genuinely wide subject range (Math, Science, History, Coding, Biology, English)
Free/basic plans cap daily questions - heavy users will hit limits quickly
Samwell AI
3.0$8/mo
vs Caktus AI$11.99 less−0.7Free plan
Guided paper creation with verified MLA/APA citations and a built-in plagiarism checker - not a remover - for students and academics writing structured essays.
- Guided paper creation with a structured essay outline builder
- Verified citation formatting across MLA, APA, and other styles
- Built-in plagiarism checker (not a remover)
Plagiarism checker (not a remover) is a genuinely more integrity-conscious design than similar tools
Free plan is limited to roughly 1,000 words
MathGPT
3.8Free
vs Caktus AI+0.1Free plan
Math-first homework helper that also runs PhysicsGPT, ChemGPT and AccountingGPT off the same input box.
- Step-by-step math problem solving from typed or photographed input
- Switchable PhysicsGPT, ChemGPT and AccountingGPT modes
- Lecture summarizer and video gallery
Four subjects covered from one shared interface
Easy to misuse as an answer shortcut rather than a study aid
EduWriter.ai
2.5$7/mo
vs Caktus AI$12.99 less−1.2Free plan
Writes a formatted research paper in under 20 seconds, with a disclaimer attached.
- Full academic papers generated in under 20 seconds
- APA citations and reference lists
- Four model tiers
Correctly formatted reference lists are a fast way to learn citation style
Produces complete submittable coursework and markets it to students
ES.AI
3.8$79/mo
vs Caktus AI$59.01 more+0.1Free plan
College application toolkit for essays, strengths discovery and internship search.
- Strengths and profile discovery before essay work begins
- Guided college essay drafting and revision
- Voice agent for conversational application coaching
Sequence mirrors how a human counsellor works a case
Essay output must be rewritten in the student's own voice before submission
FAQ
Questions people ask
Is Caktus AI free?
Caktus AI does not list a free plan. Paid plans start from $19.99/mo.
What is the best free alternative to Caktus AI?
Apex Vision AI is the highest-rated alternative here with a free plan (3.8 out of 5). Other free options: MathGPT, ES.AI, Geleza.
What is the cheapest alternative to Caktus AI?
Among paid plans, EduWriter.ai has the lowest starting price (from $7/mo). If you need it free, start with Apex Vision AI.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.